December 1972 Irish constitutional referendums
# December 1972 Irish constitutional referendums

Two referendums were held together in Ireland on 7 December 1972, each on a proposed amendment of the Irish constitution. Both proposals were approved by voters.

## Fourth amendment

The Fourth Amendment to the constitution lowered the voting age for all national elections and referendums in the state from twenty-one to eighteen years of age

Fourth Amendment of the Constitution of Ireland referendum :

| Choice | Votes | % |
| - | - | - |
| Yes | 724,836 | 84.64 |
| No | 131,514 | 15.36 |
| Valid votes | 856,350 | 94.79 |
| Invalid or blank votes | 47,089 | 5.21 |
| Total votes | 903,439 | 100.00 |
| Registered voters/turnout | 1,783,604 | 50.65 |

## Fifth amendment

The Fifth Amendment to the constitution removed reference to "special position" of the Roman Catholic Church and to certain other named denominations.

Fifth Amendment of the Constitution of Ireland referendum :

| Choice | Votes | % |
| - | - | - |
| Yes | 721,003 | 84.38 |
| No | 133,430 | 15.62 |
| Valid votes | 854,433 | 94.54 |
| Invalid or blank votes | 49,326 | 5.46 |
| Total votes | 903,759 | 100.00 |
| Registered voters/turnout | 1,783,604 | 50.67 |
